Optical waveguides – Optical fiber waveguide with cladding – Utilizing multiple core or cladding
Patent
1998-02-25
1999-10-05
Palmer, Phan
Optical waveguides
Optical fiber waveguide with cladding
Utilizing multiple core or cladding
385124, 385126, G02B 602
Patent
active
059637005
ABSTRACT:
An optical fiber includes a core, a first cladding, a second cladding, and a third cladding. The core has a refractive index n.sub.0. The first cladding is formed around the core and has a refractive index n.sub.1. The second cladding is formed around the first cladding and has a refractive index n.sub.2. The third cladding is formed around the second cladding and has a refractive index n.sub.3. The refractive indices have relationships n.sub.1 >n.sub.2 >n.sub.3 and n.sub.1 >n.sub.0.
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Horiguchi Tuneo
Kato Masao
Kurokawa Kenji
Miyajima Yoshiaki
Nippon Telegraph and Telephone Corporation
Palmer Phan
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